Tilting lamp.



z m m 5 w m m. M Z w 92 1 n o e m 0 M a w v a. a? Q A m W t 6 M 7 m M TM. MUELLER. TILTING LAMP. APPLICATION FILED JUNE J5. 151i?- 1,276,070.

T. M. MUELLER.

TILTING LAMP. APPLICATION FILED JUNE 15. 1917-,

1,276,070. Patented AilgnQO, 1918 2 SHEETS-SHEET 2.

UNITED I THEODOIR MUEL LER, OF DETROIT, MICHIGAN.

1 'EIL'IING LAMP.

Specification of Letters latent.

Patented A "11g. 20, 1.918.

l'lpplieation filed June 15, 1917. Serial No. 1%,851.

fl) all whom it may concern:

Be it known that I, Tnnonon M. MUELLER, formerly a subject of. theEmperor of German now having first United Slates eitiaenship papers,residing at. Detroit, in the county of Wayne and State of Michigan, haveimented certain new and useful 1m g.nwir\ eine'siis in llilling Lamps,of which the following is a specification, rei once being had therein inthe nemanxpanying drawings.

1e invenlion relates l-o lamps ileaignecl for a. an headlights uponvehicles and has per? -r reference to the constrnetion of means; forfilling the lamp. In the preeene oi the art. there l no been devised rm(instruct-ions of tilting lamps with which the operator can turn thelighi; down nerd 'Whon passing other vehicles, thereby avoiding ablinding glare. Where rnechani cal ermnoetions. are used foraccomplishing this adjustment. these are necessarily com-'PilCiTllll-lil to avoid interference with other meehanhnn. upon the earand-every Working john! introduced. into the connection is a source ofpoesihle trouble. It is therefore lhe primary object of my invention toob lain a oonel rneiion in which all Working jeims ofiher than thepivots on which the lam tilts are ispenseel with. A further object; tooh n. a construction of eleclro magnetic operating zneehaniein Whiehapplieahle to standard constructions of lamps \vilhont change therein.Still another oh is to combine the tilting with a dinnning of the lampstill further to utilize the energy abstracted from the lamp in thedimming of the same in whole or in part for the tilting operation In theclrewinge:

Figure 1 is a vertical central section l ie applied;

Figs. 9- and 3 are respectively rear and side elm'aiions of the lampLQfiQUtOI with the all" oheil parts of the tilting mechanism; l 1%. l to6 are diagrams ilustratlng the elool 1e circuits.

3hr0iigh alainp to which my improvement A is the easing of a lamp, B isthe refieoteg1'al with the flange of the lamp socket D,

whieh latter as well as the reflector B 'ilialnetrloally opposite sidesthereof and which are l'iIfl'illlgMl ceeei'itrio to theaxis of the lampand mmeontrie with the axis of the pivots (2, ll is :1 on ind-shapednnnnher fox-111ml of magnetic melal which smrounds the lamp eoukei' DWlill snili oienr clearance to permit of the tilting of the name, beingcentrally see iii-ed to the easing A. by suitable means. $56011 as thehi .Ll holi l and nut J. l; is a .seeoml cuppedshaped member l'ornml ofwager-lie meml having a portion sleeved upon and fit'iillFULl to themember ll and also having a portion h? which is ex"- panded' in diameterto be spaced from .310 member H concentric thereto. L is a mag" not sellarranged in the q ace internmediate the member I amlthe e2; endedportion h? of the member K. M and N are flanges on the inner ends of themembers H and K and which are arranged eonoontrie lo the of the pivots(i.

Wifih the con? "lotion as rleseriberl the members ll and K together withihe coil l form in ml'eel. 1m eleeiroinagnelz with oonminim-3e annular ple-pieoes formed, by the flanges M and. These flanges are so an rangoc'las to he in close proximity to the segmental flanges F and F secured tothe tilting roller-.101 3 and file arrangommt is also such at when themagnet is energized the sogmenis F and I will be drawn to bridge thenmgneiic gap between said. polepioees, thereby tilting the reflector l5upon the pivots G. In normal condition when. the magnet-is denergizerl'a'spring 0 ex.- ten ling between hooks 1 and Q on the mom her K andreflector B will hold the hitter in its norn'ml position for directingthe rays oo1'1. '-enh'io to the axis of the lamp, and :1.

M01) R of nonmagnetic metal secured 'to the flange N and engaging thesegment F will hold the reflector from further tilting.

The electrical. connections to the-lamp and its i erating magnet may beas shown in Figs. l, 5 and 6, in which S is the battery and T thecontrollingswitch In Fig. 4 in one position T of the switch the magnetsL are arranged 111 serles wlth the filaments of the lamp C, while-in.another position T the magnets are shunted out and the lamps alone areinelreuit. In Fig. 5 the magnets L andlhrnps C are in multipleorparallel e concentric.

' and may be independently controlled by switeh blades Ujand U. In Fig.6 a com-. pound construction is shown, the magnet being provided withtwocoils L and L the former being in series with the lamp C and the latterin parallel therewith. With each of these constructions the lamp may be7 amps,

Figs, 4. and 6 they lamps are dimmed. Thev energy required for tiltingis very slight and consequently tilted by adjusting the switch T, but inthe cbnstruction shown in Fig. 5 this is acconr lished without anydimming action in the while in the constructions shown in by properlyproportioning the coils in the construction shown in Fig. 6 thesame'amount-of energy may .be used when the lamps are tiltedas isconsumed for the full illumination of the lamps when staassemblytionary.

assembled outside bf the case and then semagnet are ture segments thereflector relation with the magnet by engagementof cured by the singlebolt 1, while the arma- F and Fbeing attached to are brought into theproper the pivots G with the bearings V. The .electrical connections vformed by flexible conductors V and W which engage a connector plug X inthe casing A. a

In operation whenever it is desired to tilt the lamp, by adjusting theswitch T from the position T to the position T the magnet -willbe-energized, causing the armature segments F, and F" to move across thegap in the magnetic circuit between thepole-pieces M and N; Thesearmature segments as well as the pole-pieces M and bl being sphericalsegments in eccentric relation to each other,

it is obvious that the magnetic actionis progressive, beginning at the;point of slightest gap and-continuing until the segments are Thisarrangement cuts down upon the amount of energy required to overcome theinertia of theparts-and consequently the ici'irrentconsumed.

It will be noted thatthere are no working joints in-the mechanism otherthan the turnmg of the pivots in the bearings V so that there areno'parts to wear or to rattle.

What lclaim as my invention is 1-.In a lamp,-the combination with an-outer casing, of a-reflector pivotallymounted therein, a lamp socketmounted on said reflector, an annular electro-magnet sur -round1ngsa1dlamp socket with a clearance for movement thereof and secured. to saidfor both the lamp and the and the reflector, and an armature mounted onsaid reflector cooperating with said magnet when energized to cause thetilting of the reflector. I

2;"Ina lamp, the combination with the outer casing and an innerreflector pirotally mounted therein, of a lamp socket mounted on saidreflector and extending in the space between the same ands-aid outercasing, an electro-magnet having annular poles surrounding and spacedfrom said lamp socket and mounted upon the outer casing and an armaturemounted on said. reflector cooperating with said magnet to efi'ect thetilting of the reflector.

3. In a lamp, the combination of an outer casin of a reflectorspivotally mounted therein, an electro-niagnet inthe space be tweensaid'reflector and outer casing,

'- net is energized.

t. In a lamp, the combination with an outer casing and an innerreflector, of a lamp socket mounted on. said reflector, an

electroanagnet having annular pole-pieces surrounding and spaced fromsaid lamp socket and also forming spherical segments, alined pivots uponsaid reflector concentric with said spherical segments, pivot-engagingbearings mounted upon the outer polepiece of said magnet and means formount ing' said magnet within said outer casing and in the space betweenthe same and said reflector.

5. In a lamp, the combination with an outer casing and a reflector haiing pivot bearings, of an electro-magnet comprising two'cupped membersone sleeved upon the other and each having an annular flange, a magneticcoil between the inner and -outer member, means for securing the innermemher to said casing, pivotal bearings on the outer member engagingtlie pivots on said reflector, armature segments mounted on saidreflector and adapted to bridge the gap between said annular flangeswhen the mag net is energized, and means for yieldably holding thearmature in eccentric relation. 6. In a lamp, the combination with theouter casing, of a reflector pivotally mount-- ed thereimanelectro-magnet for tilting said reflector, an electric lamp, an electriccircuit forsaid lamp, and means for connecting said magnet into saidcircuit to simultane ously dim the lamp and energize said. mag',- net totilt the reflector. T. In a lamp, the combination with a was mg, of areflector pivotally mounted therein,

,an electre-magnet for tilting said reflector, .an electriclemma-circuit for said electric 1 dimmed and lamp;

lamp, ands, 'cotiperating eLI'e ti'ic circuit'for said magnet, wherebysand lamp may be energy cpnserved in the dimming of the 8. In a lamp,the combination with an outer casing of a reflector pivotallymountwdtherei n, an electro magnet in the .space be fcweenisaid reflector and.outer casmg, and

said magnet operated by the spherical segmental pole-pieces, and angu'nmture mounted on said reflector having spherical segments ineccentric relation t0 said pole-pieces and. adapted to cobperatetherewith tu'effect a. tilting when the magne' is energized.

In testimuny whereof I afiix m si nature. THEODOR M. M L JERQ

